// /src/pages/hot/hot.vue
<script setup lang="ts">
import { onLoad } from '@dcloudio/uni-app';
import { getHotByType } from '@/services/hot'
import { ref } from 'vue';
import type { HotResult, PageParams, SubTypeItem } from '@/types/hot';

// 热门推荐页 标题和url
let hotMap = [
  { type: '1', title: '特惠推荐', url: '/hot/preference' },
  { type: '2', title: '爆款推荐', url: '/hot/inVogue' },
  { type: '3', title: '一站买全', url: '/hot/oneStop' },
  { type: '4', title: '新鲜好物', url: '/hot/new' },
]
let props = defineProps<{ type: string }>();
let newhotMap = hotMap.find((item) => item.type === props.type);
let hotRsult = ref<HotResult>()
let activeFlog = ref<number>(0);
let prarms: PageParams = {
  page: 1,
  pageSize: 10,
  subType: ''
}


const getHotData = async () => {
  let result = await getHotByType(newhotMap!.url);
  hotRsult.value = result.result;
}
// 高亮激活
const activebg = (index: number, subType: SubTypeItem) => {
  activeFlog.value = index;
  if (!subType.finish) {
    prarms.page = 1;
  }


}
// 上划请求数据
const onScrolltolower = async () => {
  let currentSubType = hotRsult.value?.subTypes[activeFlog.value];  //拿到当前激活的SubType
  // 判断请求页码是否超过了总页码 如果超过则return
  if (prarms.page! > (import.meta.env.DEV ? 3 : currentSubType!.goodsItems.pages)) {
    currentSubType!.finish = true;
    return uni.showToast({ icon: 'none', title: '已经划到底啦' })
  }
  prarms.page!++
  prarms.subType = currentSubType!.id;
  let result = await getHotByType(newhotMap!.url, prarms);
  currentSubType!.goodsItems.items.push(...result.result.subTypes[activeFlog.value].goodsItems.items)
}



onLoad(async () => {
  uni.setNavigationBarTitle({ title: `${newhotMap?.title}` });
  await getHotData();
})
</script>

<template>
  <view class="viewport">
    <!-- 推荐封面图 -->
    <view class="cover">
      <image :src="hotRsult?.bannerPicture">
      </image>
    </view>
    <!-- 推荐选项 -->
    <view class="tabs">
      <text class="text" :class="{ active: index === activeFlog }" v-for="(subType, index) in hotRsult?.subTypes"
        :key="subType.id" @tap="activebg(index, subType)">{{ subType.title }}</text>
    </view>
    <!-- 推荐列表 -->
    <scroll-view scroll-y class="scroll-view" v-show="index === activeFlog" v-for="(subType, index) in hotRsult?.subTypes"
      @scrolltolower="onScrolltolower()" :key="subType.id">
      <view class="goods">
        <navigator hover-class="none" class="navigator" v-for="good in subType.goodsItems.items" :key="good.id"
          :url="`/pages/goods/goods?id=${good.id}`">
          <image class="thumb" :src="good.picture"></image>
          <view class="name ellipsis">{{ good.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ good.price }}</text>
          </view>
        </navigator>
      </view>
      <view class="loading-text">{{ subType.finish ? '已经划到底啦' : '正在加载...' }}</view>
    </scroll-view>
  </view>
</template>

<style lang="scss">
page {
  height: 100%;
  background-color: #f4f4f4;
}

.viewport {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 180rpx 0 0;
  position: relative;
}

.cover {
  width: 750rpx;
  height: 225rpx;
  border-radius: 0 0 40rpx 40rpx;
  overflow: hidden;
  position: absolute;
  left: 0;
  top: 0;
}

.scroll-view {
  flex: 1;
}

.tabs {
  display: flex;
  justify-content: space-evenly;
  height: 100rpx;
  line-height: 90rpx;
  margin: 0 20rpx;
  font-size: 28rpx;
  border-radius: 10rpx;
  box-shadow: 0 4rpx 5rpx rgba(200, 200, 200, 0.3);
  color: #333;
  background-color: #fff;
  position: relative;
  z-index: 9;

  .text {
    margin: 0 20rpx;
    position: relative;
  }

  .active {
    &::after {
      content: '';
      width: 40rpx;
      height: 4rpx;
      transform: translate(-50%);
      background-color: #27ba9b;
      position: absolute;
      left: 50%;
      bottom: 24rpx;
    }
  }
}

.goods {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 20rpx 20rpx;

  .navigator {
    width: 345rpx;
    padding: 20rpx;
    margin-top: 20rpx;
    border-radius: 10rpx;
    background-color: #fff;
  }

  .thumb {
    width: 305rpx;
    height: 305rpx;
  }

  .name {
    height: 88rpx;
    font-size: 26rpx;
  }

  .price {
    line-height: 1;
    color: #cf4444;
    font-size: 30rpx;
  }

  .symbol {
    font-size: 70%;
  }

  .decimal {
    font-size: 70%;
  }
}

.loading-text {
  text-align: center;
  font-size: 28rpx;
  color: #666;
  padding: 20rpx 0 50rpx;
}
</style>